Internal-combustion engine.



- 0. LFRAZiER'. NTERNM. COfiBUSHGN ENGINE. Amlcmwu men DEC. 22. Ian.

Patented Sept, 16, 1919.

2 SWEET W M 2 a My Am 0. .2 ERAZIER. INTERNAL CUMBUSHGN ENGINE.

APPUCATIOH FILED DEC.22. 19H.

Patented Sept. 16, 1919.

2 SHEET *SHEET 2.

UNITED STATES OBVILLE Z. FBAZIER, OF

PATENT QFFICE.

INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Patented Sept. 16, -919.

Application filed December 22, 1917. Serial No. 208,340.

' To all whom it may (1071007 71:

Be it known that I, Om iLLr. Z. FRAZIER, a citizen of the United States. residing at Elkhart, in the county of Elkhart and State of Indiana, have invented certain new and useful Improvements in Internal-Combustion Engines, of which the following is a specification.

This invention relates to improvements in internal combustion engines, and has referonce more particularly to engines of the sixcycle type, although certain features of the invention are applicable with advantage to two-cycle or fourcvcle engines. The principal object of the invention is to provide a nipto'r well adapted to utilize as fuel acetylene gas or other ('OlillJUS'tilJlc gases that are supplied to the working cylinder or cylinders of the engine under considerable pres sure. It is well known that acetylene gas, when burned explosively, generates in the cylinder a considerably higher degree of heat than gasolene, kerosene, and fuels of that order; and, in order to maintain the cylinder at a working temperature, it is necessary to provide cooling means other than the usual water jacket. I have accordingly adopted thesix-cycle principle in the present invention for the purpose of int-r ducing between the usual exhaust and fuel intake strokes, an intermediate cycle during which air is drawn into and expelled from the cylinder for the double purpose of cooling and scavenging the latter; and the principal object of the invention is to provide a simple and improved three-valve system for introducing the charge, introducing the cooling and scavenging air, and exhausting the air andt-he burnt charge.

-Other objects and adva itaefes secured by the invention will be readilyiiifild stood and appreciated by those skilled in the art from a consideration of the following detail desci iption when taken in connection with the accompanying drawings, wherein l have illustrated a practicaland workable embodiment of the invention, and whcrein Figure l is a side ele 'ation, partly broken out and in section, of a four-cylinder sixcycle. internal combustion engine embodying my present improvements;

Fig. 2 is a vertical section on the line 2-E2 of Fig. 1;

Fig. 3 is a vertical section on the line 3--3 of Fig. 1.

Referring to the drawings, 5 designates an inclosed crank case from which rise four cylinders 6. Extending through the crank case is an engine shaft 7, suitably journaled in the end Walls of said crank case an carrying countcrwcightcd cranks 8 connected by pitinen 9 to the pistons or plungers 10, all as usual in engines of this character.

Surmounting the cylinders, and preferably cast integral therewith is a hollow structure that provides a head 11 for each cylinder, cylindrical valve casings 12, 13 and 1e. and a water circulation space desigdoc nated as an entirety by 15 that extends around the valve casings and cylinders. The valve casings 12, 13 and 14 communicate with the upper ends of the cylinders by ports 16, 17 and 18 respectively, and in these valve casings are mounted hollow cylindrical valves 19, 20 and 21 respectively. The valve casings and valves extend transversely of the group of cylinders, and the valves are blanked or closed at one end the right hand end as shown in Fig. l), and are formed at the same end with spindles 22, 23 and 24 (Fig. 3) that are journaled in the outer Wall 25 of a gear housing located at one end of the casing.

The valve 19 is formed with a series of lateral ports 26, and constitutes the fuel intake valve; these ports being spaced degrees apart around the axis of the valve so as to successively serve the port 16of the 7 four cylinders. The open end of the valve 19 communicates by a manifold, indicated at 27 in Fig. 1, with a source of fuel supply which preferably consists of an explosive mixture of acetylene gas and air.

The valve 20 is the air intake valve and is provided with-a series of lateral ports 28 spaced at 90 degree intervals around its axis. these ports successively serving the ports 17 of the several cylinders to admit scavenging and cooling air, the left hand end of the valve (Fig. 1) being open and preferably equipped with a funnel-shaped cud ifi havlng a strainer 30 therein.

The valve 21 serves to exhaust both the scavenging air and the burnt charge, and to this end it is prov'ded with two series of ports, 31 and 32, 1e former serving to ex;

. 1 house itlie lmrni; (allerg c and the letter hcuet time cooling and ocevengmgeir', the porte'ofi eocli ecmee being grouped 90 deeround time axis of thewalve so as toserve the four cylinders successively; One end of; this valve 921 communicates: with an exhaust monifolddndioetod sit-33 in Fig. 1-.

The three valves are continuously rotated in the'seme direction from a moving port of 1c the engine.\ l and 3 illustrate 2, simple and practical mechanism for actuetin these valves from the on no shaft '0. Re 'erring "to these views, on t eengine shaft is a. spur pinion 3d, and "fact on the spindles 22, 23 1c QA of. the wives are spur gears 35, 36 3? respectively. The teeth of the goers end 3? on the one bend and the pinion on the other are in c three to one relation the gears having for inst-once 51 teeth an pinion. 17 teeth, and around the goers pinions is trained o, sprocket chain 38 preiembly provided with a tiglitener, indicated. at v n opposite sides of the creole cesium 5 as l have indicated lugs 4C5 which the engine may be mounted. on til e bars or sills of a. chassis frame when c Jloyeol as an automobile moi/or. When need vengune those lugs are of course omitted and so as, suitable case or pedestal provided.

3 31 l have ind cated a, m igneto mounted on o bracket 42 and driven from the engine shaft 3' by gears and. ii on the engine and may; new sheits respectively and a connecting 3S2 belt or-chein 25, this magneto drive being housed within a, marrow casino" at the opposile side 01? the engine closed by an outer cover plate 4 5. The magneto elicit indicated at l? is preferably extended though this casing and forms also the diiivesheft cit e rotary pump .18 'ivhiclq maintains cir culetion of Water 'tl-irougli the Water jacket of the engine. The shaft i? also, in the pertieuler embodiment of the invention. here it! ziliown', extends the pump 4:8 and is providedwitl bevel pinion ll) driving a cooperating pinion on a couuizerslieft 5* this letter and the extension the shaft; 4-7 constituting the operatingshafts of a, ball so governed n'icciienism. for actuating a fuel control valve, this mechanism not being; herein shown and described, but forming the subject matter of Letters Patent No. 1,289,201. rented to ice Oct. 1,. 1918.

Ii 11" "e indicated conventional spark plugs with i each of the cylinders is equipped, :2. -15 $33 I lie ve shown the usual fiywliecl on T e engine we As prcvii' eluted, the novel features cc of fliis invention reside chiefly in the tliree' hollow rotary val which serve to admit the charge, odmiithe cooling and scoveng ing air, and exhaust the latter and the borne coer e, reepectivcly, ,end the ectuetiii ineciionieio'of these valves. will be noted pecielly esirable in enen as a. stationary,

that no springs are employed, wiaicll is'eo omplo ing a high tein eroture fuel. T e notion o the valves is e solutcly positive in both opening and closing and their movements are fixed and certain and incapable of disam rengement so long as the valves themselves and their actuating means remain intact. The entire construction is compact end adaptable to the limitations of motor vehicle use. Althou h more particularly designed to use acety enc gas or other high temperature fuel, it is manifestly equally well adapted to use gasolene, kerosene, or illuminoting gas, or any of the other known liquid or gaseous fuels generally employed ininternel combustion motors.

I claim: I. In em six-cycle internal combustion engine, the combination with a, plurality of cyl inders wronged side by side, pistons in said cylinders, and an engine shaft, of three cylindrical valve-casings disposed in parallel relation transversely of said cylinders and each formed with orts communicating with the latter, a. tubu or fuelsupply valve rotetelole in one of said casings, a tubular air supply valve rotatable in another of said casings, and atubular air and fuel exhaust valve rotatable in the third ofseid casings, each of mid valves being formed with lotera-ll ports ad pted to register successively wish said valve-casing ports, means for con tinuously rotating said valves simultaneously fr jacket surrounding cylindem.

2. In a six-cycle internal combustion englue, the combination with a plurality of cylinders an'anged side by in said cylinders, of av pair of cylindrical velveecesings disposed in parallel relation on opposite side-e of said cylinders, respectively, and in ported communication with the latter, a tubular fuel supply valve rotatable in one 11 of said casings, a, tubular lair and fuel ex said valve-casings and 1, houst valve rotatable in the other of said casings, a cylindrical valve casing disposed between andparallel with'said first-named valve casings and in ported with said.- cylindcrs, and, eeupplying scavenging air. rot last named cosin 3. In a. siX-cydle i'z'iternal gine, the combination with cylinders: arranged side by side, and pistons in said cylinders, of 2!. pair of cylindrical valve casings disposed in pamllelrelction on opposite sides of; said cylinders, re-

tubnlar valve table in said combustion enspectively, and with the latter, a tubular valve rotatable in one of said casings and formed with e series of lateral ports for admitting fuel to said cylinders successively, a tubular valve rotatoblein the. other of said casings 18 om said engine shaft, and a Water side,- and pistons plurality of in ported communication z em eee and formed with two series of lateral ports for discharging SCHVOHglHP air and products of comhustlon respectlve y from said cylinders successively, a cylindrical valve easingdispose-(l opposite the outer ends of said cylinders and between and parallel with said first-named valvecasings and in ported communication with said cylinders, and a said last-named casing lateral ports for 5119- 10 (1 cylinders sue;

tubular valve in. formed Wlth a senes of plylng scavengmg an to sax ceselvely.

AZIER 

